The association of physical activity through early childhood on children's chronic stress still is unclear. Therefore, the aim of the present study is to test the association of physical activity through early childhood (1-4 y) with chronic stress, measured by hair cortisol at age 4.
科研小民工
小助
杳鸢
迟大猫
自信项链
Qi
S77
妞妞公主喜欢派大星
pluto
VDC
iNk
昏睡的蟠桃
cdercder
Hungrylunch
zho
请叫我风吹麦浪
zzzq
shinysparrow
不倦
一一
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